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c. Charge test: appearing “ please insert the charge”, as insert the charge, the
interface will show “ the charge has been inserted’ and the current , the charge
LED will be on, the program check automatically “pass” or “fail”. If the current is
out of the range of demand, the ”succeed”(成功) will be dark. Or click “succeed”
into next item.
d. Receiver and microphone loopback test: go into the interface, speak towards the
microphone, the voice will be heard from the receiver. Then two choices----“pass”
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